Grease bucket



C. G. BUTLER YGREASE: Bucgm April 15, 1930.

f Filed' March 17. 1928 2 Sheets-Sheet i vApril 15, i930.

C. G. BUTLER GREASE BUCKET Fild March 17, 1928 2 sheets-sheet 2 5mm o@ 5%@ J@ Y w ."la\

@5E E E N)445% f MWC UNITED STATES PATENT omer:

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i This invention relates to grease i ensin ap tus andis especially adapt'eddtxlbe us to ubricate bea in pressure lubricatin systems wherein e bearings are provide l with fittings or other means for introducing grease.

' The object of the invention is to provide a relatively large and light grease ho ding receepltacle in combination with a paratus for lo d 'vering grease therefrom at re atively high p :c such as400 pounds per square inch to the artsto be lubricated.

F er objects and advantages will be more fully set forth in a description of the ll accompan drawi forming a part, of

this speci cation, inw ch:

- 1 is a sectional view taken centrally and vertically of the improved grease receptacle and pumnp,l

a Figure 2 is an e arged sectional view of the lower end of the cylinder detailing the piston therein, this view being an enlargement of that portion of the mechanism illustrated in Figure 1. l

Figure 8 is a top ,plan view of the grease receptacle. I

re 4 is an end view of the topportion of e improved rece tacle, showing the bracket mounted on t e top thereof for 8 mounting *andv housing the piston operatingmeans.

Figure .5 is a sectional view taken o'n line 5-5, Figure 1, detailing the levers and mounting thereof for actuating the piston.

i The mechanism of this invention comprises a receptacle a bottom 2 and aside wall B of the general form of a truncated, inverted cone and a top 4, these members being referahly made of sheet metal and secu together in any one of the `various well known ways for securing sheet metal parts together. These members are preferi ably so arranged and joined that pressure on the to tends to au the si e wall and a the engagement of said side wall with the bottom.

The top of the container is provided with 'a rture over which is ivoted a cover 5 whi is 4adapted to be hel `injplace bya 5 wingednut 6 engaged upon a screw 7 extend-- ent its engagement with ing from the to ofthe container, a slot bemg'formed in t e cover marginal edge, engagingabout the screw when the cover is swung over rthe openin The tightening ofthe wlnged nut,"there ore, locks the cover over the a rture through which the container is ed with ease or other lubricant. A 8 is provi ed, this base having a comcal bore for receiving the receptacle low-v er end andoutwardly extending le 8". The base of the receptacle engages' t e door or ground and the u legs 'provide .additional ound contact for preventing upsetting of t e receptacle.

A cas1ng-9 covers a second aperture in the top of the container, said casing being secured to sald container by bolts 10. The base 11 of the casing is provided with a screwthreaded aperture concentric with the-aper ture in the top of the container, and into this aperture is screwed a ipe or cylinder 12 of relatively heavy meta which extends to a point ad acent to the bottom of the container. A rock s aft 14 is journalled in bosses formed on the respective side walls of the casing, one end of the shaft extending from the casing. A packin gland 15 is screw-threaded into the bore' m which the shaft extends for compressing acking 16 against the shaft and seahng the aft bore.

The side of the casing, op l site to the side from which the shaft exten "1. is formed by a plate or closure member 17 Jwhich is held tifghtly to the casing by means of a plurality o screws 18. This end Elastse or closure mem'- ber is provided with a v19 aligned with the boss 20 on the oposite integral casing side, and Qthe inner en of the rockshaft is disposed in this boss 19. At the outer end of the rock shaft'a long handle 21 is secured by means of a pin 22.

v On that portion of the rock shaft within the casin and between the bosses 19 and 20 a link 23 lssecured by means of a pin 24 which passes through the link and through the rock shaft. This link has two' extending arms provided with apertures a1igned`with each other, `through which passes a'headed crank pin 25 onfwhich s pivoted a rod 26 which ex tends down into the p ipe.12 extending mto 10 the receptacle. The crank pin is held in place by means of a pin 27, passing through the unheaded end of the crank pin. The rod 26 for purposes of manufacture is preferably made of two pieces suitably secured together. The link member is rovided with two lugs 28 positioned in relatlon to an abutment 29 extending inwardly from the wall of the casing to limitthe rock ot' the rock shaft tothe desired number of degrees.

The lower end of the tube is provided with a slightly enlarged bore terminating in a screw-thread. In this screw-threaded end is screwed a. valve seat 30 carrying a ball valve 31 adapted lso to seat that fluid once takenl into the tube cannot escape therefrom downwardly. This ball valve 31' is held against too much displacement b means of a cross in 32 extending across the valve seat meinr above the ball valve. The lower end of the rod 426 is screw-threaded into engagement with a piston 33 which is secured 1n a predetermined position thereon by a. lock nut34. This piston is off hollow structure, and is constructed in two pieces, the up r or carrier piece 35 being provided with a ownwardly facing centrally located aperture and two communicating slots in the top to permit passage of grease therethrough. n

The carrier is provided at its lower end with an outwardly threaded sleeve portion 36 upon which is screwed the piston body 37 havingan internal valve seat 38. Disposed on this seat is a ball 'valve 39 'adapted to function so that grease passing by it upwardly cannot -descend below it.1y An extension 4() from the lower end of the rod 26 checks the amount this ball valve may unseat to prevent undue displacement. Between the top of the piston body 37 and the shoulder at the bottom of the carrier formed by the extension of the sleeve 36, is disposed packing 41 preferably in the form of a leather piston ring, the function of which is to prevent the grease leaking past the piston.

` The casing 9 is provlded with an outlet .or

V discharge port into which is threaded one end of a pipe 42 which communicates with a hose line 43 which is attached to the bearing to be lubricated. I

As disc1osed..a two-way valve member 44 is disposed adjacentto this casing to direct 'the grease either through this hose line or through a fitting 45 which can be used to lill a small sized grease gun, if desired. A handle-46 extends upwardly from the top of the casing 9 to enable the operator to carry the receptacle about easily or to steady the. same fwhile pum-ping grease.

4In operation the user reciprocates the handle 21 which rocks theI rock shaft and 'raises and lowers the piston adjacent to the The down stroke of the bottom of the tube. handle and the accompanying up stroke of the piston tend to suck grease from the receptacle past the lower ball valve into the bottom of the tube. The upward pull of the handle and the consequent downward stroke of the piston forces this grease through this second or upper ball valve into the tube above the piston. The next upward stroke of the piston tendsto lift/or force this grease up the tube. y

The lower end of the cylinder 12 is disposed immediately adjacent the lower end of the.

wall portion 3 so that as excess pressures are exacted, in forcing the handle down, the cylinder end engages the wall and braces the 4 pump mechanism.

In this way grease is thehose to the bearing to bey lubricated at a relatively high pressure, despite the light sheetmetal structure of the receptacle. It is possible that the operator might place delivered through so much pressure on the pump lever that the light sheet metal container would tend to collapse. l To prevent such collapse a safety valve is placed between the casing and the container to permit lubricant to escape from said casing back into said container, in case? generation of-too high a pressure were at'- tempted. This safety valve comprises a passageway between the interiors of the casing and container in which passageway is disposed a ball valve 46v pressed upwardly by ai 95 spring 47 to seat upon a constriction 48 in said passageway. This valve permits lubricant to escape from the casing when the presl sure therein rises above the pressure of theI spring 47. The tension of this spring is regu" 100 lated by an adjustable abutment 49 so that lubricant escapement will occur before the contact for the'bucket, a pump mounted onl 110 the lid having a cylinder extending down'- lwardlv into the bucket, the lower end of the cylinder disposed adjacent a portion of the wall of the bucket and adapted to contact the same when the pump is operated in discharge stroke. and a handle for operating said pump extending outwardly over the bucket and over that portion' of the wall diametrically opposite said portion contacted by the cylinder.

2. In a device of the class described, a ta l pered bucket, a base surrounding the small end of the bucket, said base having legs extending therefrom engaging the ground for providing a greater support for the taperedv bucket, a pump mounted on the top of said" bucket, said pump having its Cylinder eX- tending downwardly linto the lower end y'of the bucket, the lowerl endof saidcylinder` dlsposed" adjacent the vwall of the bucket and adapted to engage the wall during no 4 strokeofithe pum ,"e handle forI `seid pum extending outw y over the of the buc et and over that portxon ofthe w y of the bucket opposite the portion oontaced by the cylinder.

` Ip witness whereof, I- herennto subscribe lmy nnme. v 

